My only feedback on that kit (and I've shared this with Seb) is with the optional bulkhead fitting. It needs to be super tight otherwise it can wick fuel through the bulkhead via the wires. I tightened mine down completely and it still had a tiny amount of fuel pulling through. I only realized that right before my roadtrip last week, so I applied some fuel-safe epoxy to seal it up temporarily and worked fine. I'll need to swap that out at some point.
If you're just soldering the wires to the factory connections on the hanger, that would eliminate that risk.
